ML17332A569

Application for Amends to Licenses DPR-58 & DPR-78,revising TS to Increase Limit for Control Rod Misalignment at or Below 85% Rated Thermal Power

ML17332A569
Person / Time
Site:	Cook
Issue date:	02/10/1995
From:	Fitzpatrick E INDIANA MICHIGAN POWER CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17332A570	List: ML17332A569 ML17332A571
References
AEP:NRC:1182A, NUDOCS 9502150146
Download: ML17332A569 (5)

Text

RIORITY l PACCELERATED RIDS PROCESSINC REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS) og 4 ACCESSION NBR: 9502150146 DOC. DATE: 95/02/10 NOTARIZED: YES DOCKET FACIL:50-315 Donald C. Cook Nuclear Power Plant, Unit 1, Indiana M 05000315 50-316 Donald C. Cook Nuclear Power Plant, Unit 2, Indiana M 05000316 AUTH. NAME AUTHOR AFFILIATION FITZPATRICK,E. Indiana Michigan Power Co.

RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)

SUBJECT:

Application for amends to licenses DPR-58 8 DPR-78,revising TS to increase limit for control rod misalignment at or below 854 rated thermal power.

DISTRIBUTION CODE: A001D COPIES RECEIVED:LTR ENCL SIZE:

TITLE: OR Submittal: General Distribution NOTES:

RECIPIENT COPIES RECIPIENT COPIES ID CODE/NAME, LTTR ENCL ID CODE/NAME LTTR ENCL PD3-1 LA 1 1 PD3-1 PD 1 1 HICKMAN,J 1 1 INTERNA . LE CENTER=01 1 1 NRR/DRCH/HICB 1 1 NRR/DSSA/SPLB 1 1 NRR/DSSA/SRXB 1 1 NUDOCS-ABSTRACT 1 1 OGC/HDS2 1 0 EXTERNAL: NOAC 1 1 NRC PDR 1 1 NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE WASTE! CONTACI THE DOCUWIENT CONTROL DESK, ROOIiI PI-37 IEXT. 504-2083 ) TO ELIXIINATE YOUR NAME FROliI DISTRI!3UTION LISTS FOR DOCL.'MEN'I'S YOU DON"I'EED!

TOTAL NUMBER OF COPIES REQUIRED LTTR 11 ENCL 10

indiana Michigan Power Company P.O. Box 16631 Columbus, OH 43216 February 10, 1995 AEP:NRC:1182A Docket Nos.: 50-315 50-316 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 Gentlemen:

Donald C. Cook Nuclear Plant Units 1 and 2 TECHNICAL SPECIFICATION (T/S) CHANGE REQUEST:

ROD MISALIGNMENT REQUIREMENT FOR MOVABLE CONTROL ASSEMBLIES RESPONSE TO REQUEST FOR CLARIFICATION Proposed changes to T/S 3/4.1.3 were submitted to the NRC for review and approval on January 17, 1994, via letter AEP:NRC:1182.

The proposed changes increase the T/S limit for control rod misalignment at or below 85% Rated Thermal Power. The proposed changes also increase the T/S limit for control rod misalignment above 85% Rated Thermal Power if there is sufficient margin in the Heat Flux (F~(Z)) and the Nuclear Enthalpy (Fqn) Hot Channel Factors. The purpose of this letter is to clarify Technical Specification (T/S) action statements as requested by the NRR staff.

In the proposed T/S, a reduction in power to 75% Rated Thermal Power is required if one full-length rod is misaligned by more than the allowed rod misalignment. During their review of the proposed T/S, the NRR staff requested clarification on the T/S action if the misalignment is less than or equal to *18 steps at greater than 85%

Rated Thermal Power. If the rod misalignment is less than or equal to a18 steps, then power reduction to only 85% Rated Thermal Power is required. Therefore, action item c.l is modified as shown in the attachments. If the rod misalignment is greater than +18 steps, power reduction to 75% Rated Thermal Power is required per T/S action statement c.2.d.

This additional change to the T/S is only for clarification, therefore, an analysis concerning significant hazards consideration pursuant to 10 CFR 50.92 is not required. Attachment 1 contains the existing T/S pages marked to reflect the proposed changes. Attachment 2 contains the proposed revised T/S pages.

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U.S. Nuclear Regulatory Commission AEP'NRC'1182A Page 2 These proposed T/S changes have been reviewed and approved by the Plant Nuclear Safety Review Committee and will be approved by the Nuclear Safety and Design Review Committee at the next regularly scheduled meeting.

In compliance with the requirements of 10 CFR 50.91(b)(l), copies of this letter and its attachments have been transmitted to Mr. J. R. Padgett of the Michigan Public Service Commission and the Michigan Department of Public Health.

Sincerely, E. E. Fitzpatrick Vice President

'SWORN TO AND SUBSCRIBED BEFORE ME THIS ~>+ DAY OF w~ 1995 N tery Public eh Attachment CC: A. A. Blind G. Charnoff J. B. Martin - Region III NFEM Section Chief NRC Resident Inspector - Bridgman J. R. Padgett

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